/* Set the defaults for DataTables initialisation */
$.extend( true, $.fn.dataTable.defaults, {
        "sDom":
                "<'row'<'col-xs-6'l><'col-xs-6'f>r>"+
                "t"+
                "<'row'<'col-xs-6'i><'col-xs-6'p>>",
        "oLanguage": {
                "sLengthMenu": "_MENU_ records per page"
        }
} );


/* Default class modification */
$.extend( $.fn.dataTableExt.oStdClasses, {
        "sWrapper": "dataTables_wrapper form-inline",
        "sFilterInput": "form-control input-sm",
        "sLengthSelect": "form-control input-sm"
} );

// In 1.10 we use the pagination renderers to draw the Bootstrap paging,
// rather than  custom plug-in
if ( $.fn.dataTable.Api ) {
        $.fn.dataTable.defaults.renderer = 'bootstrap';
        $.fn.dataTable.ext.renderer.pageButton.bootstrap = function ( settings, host, idx, buttons, page, pages ) {
                var api = new $.fn.dataTable.Api( settings );
                var classes = settings.oClasses;
                var lang = settings.oLanguage.oPaginate;
                var btnDisplay, btnClass;

                var attach = function( container, buttons ) {
                        var i, ien, node, button;
                        var clickHandler = function ( e ) {
                                e.preventDefault();
                                if ( e.data.action !== 'ellipsis' ) {
                                        api.page( e.data.action ).draw( false );
                                }
                        };

                        for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
                                button = buttons[i];

                                if ( $.isArray( button ) ) {
                                        attach( container, button );
                                }
                                else {
                                        btnDisplay = '';
                                        btnClass = '';

                                        switch ( button ) {
                                                case 'ellipsis':
                                                        btnDisplay = '&hellip;';
                                                        btnClass = 'disabled';
                                                        break;

                                                case 'first':
                                                        btnDisplay = lang.sFirst;
                                                        btnClass = button + (page > 0 ?
                                                                '' : ' disabled');
                                                        break;

                                                case 'previous':
                                                        btnDisplay = lang.sPrevious;
                                                        btnClass = button + (page > 0 ?
                                                                '' : ' disabled');
                                                        break;

                                                case 'next':
                                                        btnDisplay = lang.sNext;
                                                        btnClass = button + (page < pages-1 ?
                                                                '' : ' disabled');
                                                        break;

                                                case 'last':
                                                        btnDisplay = lang.sLast;
                                                        btnClass = button + (page < pages-1 ?
                                                                '' : ' disabled');
                                                        break;

                                                default:
                                                        btnDisplay = button + 1;
                                                        btnClass = page === button ?
                                                                'active' : '';
                                                        break;
                                        }

                                        if ( btnDisplay ) {
                                                node = $('<li>', {
                                                                'class': classes.sPageButton+' '+btnClass,
                                                                'aria-controls': settings.sTableId,
                                                                'tabindex': settings.iTabIndex,
                                                                'id': idx === 0 && typeof button === 'string' ?
                                                                        settings.sTableId +'_'+ button :
                                                                        null
                                                        } )
                                                        .append( $('<a>', {
                                                                        'href': '#'
                                                                } )
                                                                .html( btnDisplay )
                                                        )
                                                        .appendTo( container );

                                                settings.oApi._fnBindAction(
                                                        node, {action: button}, clickHandler
                                                );
                                        }
                                }
                        }
                };

                attach(
                        $(host).empty().html('<ul class="pagination"/>').children('ul'),
                        buttons
                );
        }
}
else {
        // Integration for 1.9-
        $.fn.dataTable.defaults.sPaginationType = 'bootstrap';

        /* API method to get paging information */
        $.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )
        {
                return {
                        "iStart":         oSettings._iDisplayStart,
                        "iEnd":           oSettings.fnDisplayEnd(),
                        "iLength":        oSettings._iDisplayLength,
                        "iTotal":         oSettings.fnRecordsTotal(),
                        "iFilteredTotal": oSettings.fnRecordsDisplay(),
                        "iPage":          oSettings._iDisplayLength === -1 ?
                                0 : Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
                        "iTotalPages":    oSettings._iDisplayLength === -1 ?
                                0 : Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
                };
        };

        /* Bootstrap style pagination control */
        $.extend( $.fn.dataTableExt.oPagination, {
                "bootstrap": {
                        "fnInit": function( oSettings, nPaging, fnDraw ) {
                                var oLang = oSettings.oLanguage.oPaginate;
                                var fnClickHandler = function ( e ) {
                                        e.preventDefault();
                                        if ( oSettings.oApi._fnPageChange(oSettings, e.data.action) ) {
                                                fnDraw( oSettings );
                                        }
                                };

                                $(nPaging).append(
                                        '<ul class="pagination">'+
                                                '<li class="prev disabled"><a href="#">&larr; '+oLang.sPrevious+'</a></li>'+
                                                '<li class="next disabled"><a href="#">'+oLang.sNext+' &rarr; </a></li>'+
                                        '</ul>'
                                );
                                var els = $('a', nPaging);
                                $(els[0]).bind( 'click.DT', { action: "previous" }, fnClickHandler );
                                $(els[1]).bind( 'click.DT', { action: "next" }, fnClickHandler );
                        },

                        "fnUpdate": function ( oSettings, fnDraw ) {
                                var iListLength = 5;
                                var oPaging = oSettings.oInstance.fnPagingInfo();
                                var an = oSettings.aanFeatures.p;
                                var i, ien, j, sClass, iStart, iEnd, iHalf=Math.floor(iListLength/2);

                                if ( oPaging.iTotalPages < iListLength) {
                                        iStart = 1;
                                        iEnd = oPaging.iTotalPages;
                                }
                                else if ( oPaging.iPage <= iHalf ) {
                                        iStart = 1;
                                        iEnd = iListLength;
                                } else if ( oPaging.iPage >= (oPaging.iTotalPages-iHalf) ) {
                                        iStart = oPaging.iTotalPages - iListLength + 1;
                                        iEnd = oPaging.iTotalPages;
                                } else {
                                        iStart = oPaging.iPage - iHalf + 1;
                                        iEnd = iStart + iListLength - 1;
                                }

                                for ( i=0, ien=an.length ; i<ien ; i++ ) {
                                        // Remove the middle elements
                                        $('li:gt(0)', an[i]).filter(':not(:last)').remove();

                                        // Add the new list items and their event handlers
                                        for ( j=iStart ; j<=iEnd ; j++ ) {
                                                sClass = (j==oPaging.iPage+1) ? 'class="active"' : '';
                                                $('<li '+sClass+'><a href="#">'+j+'</a></li>')
                                                        .insertBefore( $('li:last', an[i])[0] )
                                                        .bind('click', function (e) {
                                                                e.preventDefault();
                                                                oSettings._iDisplayStart = (parseInt($('a', this).text(),10)-1) * oPaging.iLength;
                                                                fnDraw( oSettings );
                                                        } );
                                        }

                                        // Add / remove disabled classes from the static elements
                                        if ( oPaging.iPage === 0 ) {
                                                $('li:first', an[i]).addClass('disabled');
                                        } else {
                                                $('li:first', an[i]).removeClass('disabled');
                                        }

                                        if ( oPaging.iPage === oPaging.iTotalPages-1 || oPaging.iTotalPages === 0 ) {
                                                $('li:last', an[i]).addClass('disabled');
                                        } else {
                                                $('li:last', an[i]).removeClass('disabled');
                                        }
                                }
                        }
                }
        } );
}


/*
 * TableTools Bootstrap compatibility
 * Required TableTools 2.1+
 */
if ( $.fn.DataTable.TableTools ) {
        // Set the classes that TableTools uses to something suitable for Bootstrap
        $.extend( true, $.fn.DataTable.TableTools.classes, {
                "container": "DTTT btn-group",
                "buttons": {
                        "normal": "btn btn-default",
                        "disabled": "disabled"
                },
                "collection": {
                        "container": "DTTT_dropdown dropdown-menu",
                        "buttons": {
                                "normal": "",
                                "disabled": "disabled"
                        }
                },
                "print": {
                        "info": "DTTT_print_info modal"
                },
                "select": {
                        "row": "active"
                }
        } );

        // Have the collection use a bootstrap compatible dropdown
        $.extend( true, $.fn.DataTable.TableTools.DEFAULTS.oTags, {
                "collection": {
                        "container": "ul",
                        "button": "li",
                        "liner": "a"
                }
        } );
}